host: start_devserver: Remove exporting install mask

Remove exporting DEFAULT_INSTALL_MASK.

BUG=b:241001394
TEST=None

Cq-Depend: chromium:3803792
Change-Id: I9f0b79fd1a5149b1e1f0ea7bca8625845fe59345
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/3807650
Tested-by: Ram Chandrasekar <[email protected]>
Reviewed-by: Mike Frysinger <[email protected]>
Commit-Queue: Ram Chandrasekar <[email protected]>
1 file changed